20200258 Ver 1_B-4844 alt. analysis_20200218

Roy COOPER
GOVERNOR
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STATE OF NORTH CAROLINA
DEPARTMENT OF TRANSPORTATION
September 26, 2019
MEMORANDUM TO: Eric Alsmeyer
USACE rep
FROM: Chad Coggins
Division 4 DEO
SUBJECT: B-4844 Alterative Analysis
TAMES H. TROGDON, III
SECRETARY
Description: The proposed project involves replacing Bridge No. 950117 on SR
1502/1958 (Bennetts Bridge Road) over Northeast Cape Fear River in Wayne County.
The proposed project is included in the 2016-2025 North Carolina State Transportation
Improvement Program (STIP). Right of way acquisition and construction are scheduled
for state fiscal years 2019 and 2020, respectively, in the STIR The current ADT for this
bridge is 2600 with 8% truck traffic. The bridge is expected to carry 3800 vehicles per
day in the design year (2040). The existing bridge constructed in 1952 is approaching the
end of its useful life.
Purpose and Need: The purpose of the proposed project is to replace a structurally
deficient bridge. NCDOT Bridge Management Unit records indicated Bridge No. 950117
has a sufficiency rating of 11.8 out of a possible 100 for a new structure.
Alternatives Considered:
No Build — The no build alternative would result in eventually closing the road. Given
the volume of traffic served by SR 1502/1958 (Bennetts Bridge Road), this is not
acceptable.
Rehabilitation — Rehabilitation of the old bridge is not practical due to its age and
deteriorated condition.
Offsite Detour — Due to moderate truck traffic volumes (8%) it was determined that the
offsite detour route travel lanes and shoulder widths were inadequate to safely support
these truck traffic volumes. The offsite detour is roughly seven miles in length and the
main commercial user on this detour would be trucking related to Butterball LLC, which
expressed concerns early on during planning about offsite detour lengths.
Mailing Address: Telephone: [phone] Location:
NC DEPARTMENT OF TRANSPORTATION Customer Service: 1-877-368-4968 509 WARD BLVD
DIVISION FOUR WILSON, NC 27895
POST OFFICE BOX 3165 Website: www.ncdot.gov
WILSON, NC 27895

STATE OF NORTH CAROLINA
DEPARTMENT OF TRANSPORTATION
Roy COOPER
GOVERNOR
TAMES H. TROGDON, III
SECRETARY
Onsite Detour —This is the preferred alternative for this project. Two options were
explored.
• Onsite detour to the west- This is the preferred alternative for this project. This
alternative impacts 0.86 ac of wetlands. However, it does not have impacts to
Duke transmission lines. Most of these wetland impacts can be restored once
detour is removed. See attached drawings for final impact numbers.
• Onsite detour to the east- This alternative impacts 0.73 ac of wetlands however
several transmission poles would have to be relocated which would cause
disruptions to primary electrical transmission systems. These primary electrical
systems can only be disturbed during certain months of the year when power is
not in a peak season. This would decrease the construction time frame and
negatively affect the project. In addition, this relocation would increase the
project cost by an additional $1.0 million essentially doubling the current project
estimate of $1.2 million. There would likely be additional wetland impacts
associated this relocation as well. Therefore, this alternative was not selected.
Phased Construction — This alternative was not selected. However, both an east and
west option was explored. This option would introduce 4 horizontal curves at this bridge
location which is currently a straight roadway section. This would reduce the design
speed through this section and introduce poor roadway design geometry. In addition
phased construction would introduce a one lane, two way configuration using a
temporary signal and with a current ADT of 2600 this could cause some moderate vehicle
backups and delays during peak flow hours
• Phased Construction to the west —This option would have 0.64 ac of wetlands
impacts. These impacts would be considered permanent.
• Phased Construction to the east —This option would have 0.68 ac of wetlands
impacts. These impacts would be considered permanent. Additionally, this option
would have similar impacts related to utilities as stated above in the onsite detour
east option.
Mailing Address:
NC DEPARTMENT OF TRANSPORTATION
DIVISION FOUR
POST OFFICE BOX 3165
WILSON, NC 27895
Telephone: [phone]
Fax: [phone]
Customer Service: 1-877-368-4968
Website: www.ncdot.gov
Location:
509 WARD BLVD
WILSON, NC 27895